<http://webisa.webdatacommons.org/134904581>	<http://www.w3.org/ns/prov#value>	"The cover 250 may comprise a variety of materials, including non-conductive metal, general plastic material, thermoplastic polymers such as polypropylene, polyethylene or polystyrene, or other similar and suitable materials." .
<http://webisa.webdatacommons.org/prov/477958015>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/134904581> .
<http://webisa.webdatacommons.org/134904581>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/477942286>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/134904581> .
<http://webisa.webdatacommons.org/134904581>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<freepatentsonline.com> .